POTASSIUM, 24 HOUR URINE

Test Code

LAB436

CPT Codes
81050, 84133

Preferred Specimen

24 hr. urine collection

Instructions

TO COLLECT A 24-HOUR URINE SPECIMEN: At the hour selected to start the 24-hour period, have the patient urinate and discard. From that time collect all urine passed in a clean container and transfer immediately to this bottle. DO NOT HAVE PATIENT URINATE DIRECTLY INTO THE BOTTLE. Have the patient pass the last urine at the end of the 24-hour period and add this into the bottle. The container must be kept refrigerated at all times during the 24-hour collection.

Transport Container

24 Hr urine container with no preservative

Transport Temperature

Refrigerate during 24 hr urine collection

Methodology
Ion Selective Electrode (ISE)

Setup Schedule

Set Up:Daily

Reference Range

Potassium, 24hr urine		Not established
Potassium, 24hr urine	Calc	25-100 mEq/24 Hr
24Hr Total Urine Volume		1000-2500 mL

Performing Laboratory
GBMC Chemistry

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.